Lycocerus marginalis, Švihla, Vladimír, 2011

Švihla, Vladimír, 2011, New taxa of the subfamily Cantharinae (Coleoptera: Cantharidae) from south-eastern Asia, with notes on other species III, Zootaxa 2895, pp. 1-34 : 13

publication ID	https://doi.org/ 10.5281/zenodo.277686
DOI	https://doi.org/10.5281/zenodo.6183659
persistent identifier	https://treatment.plazi.org/id/03C07C4C-FFA7-8A03-FF29-A0C91938F903
treatment provided by	Plazi
scientific name	Lycocerus marginalis
status	sp. nov.

Treatment

Lycocerus marginalis sp. nov.

Figs. 14 View FIGURES 10 – 18. 10 – 18 , 67–70 View FIGURES 64 – 77. 64 – 66 .

Type locality. China, northern Yunnan province, Diqing Tibet autonomous prefecture, Deqin county, Meili Xue Shan mts., eastern side, 14 km west of Deqin, 28°27.47ˏN 98°46.35ˏE, 2580 m a.s.l.

Type material. Holotype ( NMEG), male, “ CHINA (N-Yunnan) Diqing Tibet Aut. Pref., Deqin Co., Meili Xue Shan, E-side, 14 km W Deqin, 28°27.47ˏN 98°46.35ˏE, 2580 m, small creek valley below glacier (mixed forest), 11. VI.2005 D. W. Wrase [lgt.], [09B] [white label, printed]”. Paratypes ( AKKG, NMPC), same label data as holotype, 3 females.

Description. Coloration ( Fig. 14 View FIGURES 10 – 18. 10 – 18 ). Head including antennae black, mandibles sepia brown. Prothorax black, lateral sides more or less widely saffron yellow, black median coloration of pronotum forms a large spot dilated posteriorly (distinctly more so in male than in females). Scutellum, meso- and metasternum and ventral side of abdomen black, legs black, apices of femora and bases of posterior tibiae more or less broadly terracotta. Elytra sooty to black, wide lateral and apical margin and narrow sutural margins of each elytron saffron yellow to orange.

Male. Eyes comparatively small, only moderately protruding, head across eyes narrower than pronotum by almost one quarter, sides of vertex behind eyes straight, moderately converging posteriorly. Antennae extending for ca three quarters of elytral length, antennomeres 3–9 subtriangular, flattened, 10 nearly parallel-sided, slightly flattened, 11 not flattened, constricted on one side for two thirds of its length. Surface of head very finely imbricatepunctate, covered by sparse, long, decumbent orange pubescence, semilustrous. Pronotum almost one quarter wider than long, anterior margin moderately convex, anterior corners rounded, lateral margins nearly straight, strongly diverging posteriorly, posterior corners almost sharp, posterior margin moderately convex. Surface of pronotum sculptured and pubescent like that of head, semilustrous. Claws simple. Elytra rather dilated posteriorly, apex of each elytron strongly rounded, elytral venation slightly developed excluding almost costate sutural vein. Surface of elytra areolate-rugose, with sparse, semierect, long orange pubescence, matt. Aedeagus as in Figs. 67– 69 View FIGURES 64 – 77. 64 – 66 .

Female. Eyes less protruding than in male, head across eyes as wide as anterior margin of pronotum. Antennae considerably shorter than in male, hardly reaching elytral midlength, antennomeres 3–10 flattened, 3–8 widely subtriangular, 9–10 oval, 11 without constriction. Surface of head and pronotum more densely pubescent than in male, matt. Outer claws of pro- and mesotarsi with basal projection. Last abdominal sternite as in Fig. 70 View FIGURES 64 – 77. 64 – 66 .

Length (both sexes). 11.9–13.3 mm.

Differential diagnosis. Lycocerus marginalis sp. nov. is by its coloration and body form similar to bicolored forms of Lycocerus limbatus Pic, 1915 (Sichuan, Yunnan) and Lycocerus yunnanus (Fairmaire, 1887) (Sichuan, Yunnan), from both of which it differs by narrow and apically curved divided portions of dorsal part of the aedeagus (cf. Kazantsev 1999). The aedeagus is very similar to that of Lycocerus lateritius Gorham, 1889 ( Nepal, Bhutan, northern India), from which it differs by subtriangular (not trapezoidal) and narrower flattened antennomeres in both sexes, distinctly bicolored elytra and narrower parameres (cf. Kazantsev 1999).

Etymology. Latin marginalis = border or margin. Named in the reference of the elytral coloration.

Distribution. China: Yunnan province.